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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 &smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2011 New Dream Network
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License version 2, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include <future>
#include <mutex>
#include <thread>
#include "common/mutex_debug.h"
#include "gtest/gtest.h"
template<typename Mutex>
static bool test_try_lock(Mutex* m) {
if (!m->try_lock())
return false;
m->unlock();
return true;
}
template<typename Mutex>
static void test_lock() {
Mutex m("mutex");
auto ttl = &test_try_lock<Mutex>;
m.lock();
ASSERT_TRUE(m.is_locked());
auto f1 = std::async(std::launch::async, ttl, &m);
ASSERT_FALSE(f1.get());
ASSERT_TRUE(m.is_locked());
ASSERT_TRUE(!!m);
m.unlock();
ASSERT_FALSE(m.is_locked());
ASSERT_FALSE(!!m);
auto f3 = std::async(std::launch::async, ttl, &m);
ASSERT_TRUE(f3.get());
ASSERT_FALSE(m.is_locked());
ASSERT_FALSE(!!m);
}
TEST(MutexDebug, Lock) {
test_lock<ceph::mutex_debug>();
}
TEST(MutexDebug, NotRecursive) {
ceph::mutex_debug m("foo");
auto ttl = &test_try_lock<mutex_debug>;
ASSERT_NO_THROW(m.lock());
ASSERT_TRUE(m.is_locked());
ASSERT_FALSE(std::async(std::launch::async, ttl, &m).get());
ASSERT_THROW(m.lock(), std::system_error);
ASSERT_TRUE(m.is_locked());
ASSERT_FALSE(std::async(std::launch::async, ttl, &m).get());
ASSERT_NO_THROW(m.unlock());
ASSERT_FALSE(m.is_locked());
ASSERT_TRUE(std::async(std::launch::async, ttl, &m).get());
}
TEST(MutexRecursiveDebug, Lock) {
test_lock<ceph::mutex_recursive_debug>();
}
TEST(MutexRecursiveDebug, Recursive) {
ceph::mutex_recursive_debug m("m");
auto ttl = &test_try_lock<mutex_recursive_debug>;
ASSERT_NO_THROW(m.lock());
ASSERT_TRUE(m.is_locked());
ASSERT_FALSE(std::async(std::launch::async, ttl, &m).get());
ASSERT_NO_THROW(m.lock());
ASSERT_TRUE(m.is_locked());
ASSERT_FALSE(std::async(std::launch::async, ttl, &m).get());
ASSERT_NO_THROW(m.unlock());
ASSERT_TRUE(m.is_locked());
ASSERT_FALSE(std::async(std::launch::async, ttl, &m).get());
ASSERT_NO_THROW(m.unlock());
ASSERT_FALSE(m.is_locked());
ASSERT_TRUE(std::async(std::launch::async, ttl, &m).get());
}
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